2349949813 has 4 divisors (see below), whose sum is σ = 2452121568. Its totient is φ = 2247778060.

The previous prime is 2349949799. The next prime is 2349949817. The reversal of 2349949813 is 3189499432.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2349949813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2349949817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51085843 + ... + 51085888.

It is an arithmetic number, because the mean of its divisors is an integer number (613030392).

Almost surely, 2^2349949813 is an apocalyptic number.

2349949813 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2349949813 is a deficient number, since it is larger than the sum of its proper divisors (102171755).

2349949813 is a wasteful number, since it uses less digits than its factorization.

2349949813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102171754.

The product of its digits is 1679616, while the sum is 52.

The square root of 2349949813 is about 48476.2809320187. The cubic root of 2349949813 is about 1329.4934308038.

The spelling of 2349949813 in words is "two billion, three hundred forty-nine million, nine hundred forty-nine thousand, eight hundred thirteen".